Originally Posted by
stevef
LB: Yes, I'm aware of that, despite only being 68.
The original mention was that the guns were
water cooled (not air cooled). The aircraft hydraulic system in those days would have been vegetable-based oil, I forget the RAF stores DTD number. These days it's 585/Fluid 41 or Skydrol.
Sorry, I didn't look back far enough because I am 86.